Patents by Inventor Jan L. J. P. Hennekens

Jan L. J. P. Hennekens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of cycloalkanones and cycloalkanols
    Patent number: 4042630
    Abstract: An improved process for preparing cycloalkanones and cycloalkanols from cycloalkylhydroperoxides. Cycloalkylhydroperoxides are converted under the influence of a solid heterogeneous chromium oxide catalyst and the reaction mixture is stripped with a stripping gas which reduces the content of water which is formed in the reaction mixture during conversion. As a result, the catalyst activity and selectivity is maintained.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: August 16, 1977
    Assignee: Stamicarbon B.V.
    Inventors: Jan Wolters, Jan L. J. P. Hennekens
  • Process for preparing cycloalkanones and cycloalkanols
    Patent number: 3987101
    Abstract: A process for preparing cycloalkanones and cycloalkanols by conversion of cycloalkylhydroperoxides under the influence of a solid heterogeneous catalyst wherein cycloalkylhydroperoxides having 5-12 carbon atoms in the ring are converted under the influence of an oxidic, chromium catalyst which does not contain any copper oxide.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: October 19, 1976
    Assignee: Stamicarbon B.V.
    Inventors: Jan Wolters, Jan L. J. P. Hennekens